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Title: An array of virtual Frisch-grid CdZnTe detectors and a front-end application-specific integrated circuit for large-area position-sensitive gamma-ray cameras

Abstract

We developed a robust and low-cost array of virtual Frisch-grid CdZnTe (CZT) detectors coupled to a front-end readout ASIC for spectroscopy and imaging of gamma rays. The array operates as a self-reliant detector module. It is comprised of 36 close-packed 6x6x15 mm3 detectors grouped into 3x3 sub-arrays of 2x2 detectors with the common cathodes. The front-end analog ASIC accommodates up to 36 anode and 9 cathode inputs. Several detector modules can be integrated into a single- or multi-layer unit operating as a Compton or a coded-aperture camera. We present the results from testing two fully assembled modules and readout electronics. The further enhancement of the arrays’ performance and reduction of their cost are made possible by using position-sensitive virtual Frisch-grid detectors, which allow for accurate corrections of the response of material non-uniformities caused by crystal defects.

Authors:
 [1];  [1];  [1]; ORCiD logo [1];  [1];  [1];  [1]; ORCiD logo [2];  [1]; ORCiD logo [3];  [1];  [1]; ORCiD logo [4]; ORCiD logo [1];  [1];  [1];  [1];  [1]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States)
  2. Univ. of Texas at El Paso, El Paso, Texas (United States)
  3. Korea University, Seoul (South Korea)
  4. SUNY Binghamton, Vestal, NY (United States)
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA), Office of Nonproliferation and Verification Research and Development (NA-22); USDOE
OSTI Identifier:
1239771
Alternate Identifier(s):
OSTI ID: 1228712
Report Number(s):
BNL-108271-2015-JA
Journal ID: ISSN 0034-6748; RSINAK; NN2001
Grant/Contract Number:  
SC00112704; AC02-98CH1-886
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 86; Journal Issue: 7; Journal ID: ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Bolotnikov, A. E., Ackley, K., Camarda, G. S., Cherches, C., Cui, Y., De Geronimo, G., Fried, J., Hodges, D., Hossain, A., Lee, W., Mahler, G., Maritato, M., Petryk, M., Roy, U., Salwen, C., Vernon, E., Yang, G., and James, R. B. An array of virtual Frisch-grid CdZnTe detectors and a front-end application-specific integrated circuit for large-area position-sensitive gamma-ray cameras. United States: N. p., 2015. Web. doi:10.1063/1.4927455.
Bolotnikov, A. E., Ackley, K., Camarda, G. S., Cherches, C., Cui, Y., De Geronimo, G., Fried, J., Hodges, D., Hossain, A., Lee, W., Mahler, G., Maritato, M., Petryk, M., Roy, U., Salwen, C., Vernon, E., Yang, G., & James, R. B. An array of virtual Frisch-grid CdZnTe detectors and a front-end application-specific integrated circuit for large-area position-sensitive gamma-ray cameras. United States. https://doi.org/10.1063/1.4927455
Bolotnikov, A. E., Ackley, K., Camarda, G. S., Cherches, C., Cui, Y., De Geronimo, G., Fried, J., Hodges, D., Hossain, A., Lee, W., Mahler, G., Maritato, M., Petryk, M., Roy, U., Salwen, C., Vernon, E., Yang, G., and James, R. B. 2015. "An array of virtual Frisch-grid CdZnTe detectors and a front-end application-specific integrated circuit for large-area position-sensitive gamma-ray cameras". United States. https://doi.org/10.1063/1.4927455. https://www.osti.gov/servlets/purl/1239771.
@article{osti_1239771,
title = {An array of virtual Frisch-grid CdZnTe detectors and a front-end application-specific integrated circuit for large-area position-sensitive gamma-ray cameras},
author = {Bolotnikov, A. E. and Ackley, K. and Camarda, G. S. and Cherches, C. and Cui, Y. and De Geronimo, G. and Fried, J. and Hodges, D. and Hossain, A. and Lee, W. and Mahler, G. and Maritato, M. and Petryk, M. and Roy, U. and Salwen, C. and Vernon, E. and Yang, G. and James, R. B.},
abstractNote = {We developed a robust and low-cost array of virtual Frisch-grid CdZnTe (CZT) detectors coupled to a front-end readout ASIC for spectroscopy and imaging of gamma rays. The array operates as a self-reliant detector module. It is comprised of 36 close-packed 6x6x15 mm3 detectors grouped into 3x3 sub-arrays of 2x2 detectors with the common cathodes. The front-end analog ASIC accommodates up to 36 anode and 9 cathode inputs. Several detector modules can be integrated into a single- or multi-layer unit operating as a Compton or a coded-aperture camera. We present the results from testing two fully assembled modules and readout electronics. The further enhancement of the arrays’ performance and reduction of their cost are made possible by using position-sensitive virtual Frisch-grid detectors, which allow for accurate corrections of the response of material non-uniformities caused by crystal defects.},
doi = {10.1063/1.4927455},
url = {https://www.osti.gov/biblio/1239771}, journal = {Review of Scientific Instruments},
issn = {0034-6748},
number = 7,
volume = 86,
place = {United States},
year = {Tue Jul 28 00:00:00 EDT 2015},
month = {Tue Jul 28 00:00:00 EDT 2015}
}

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Works referenced in this record:

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Design Considerations and Testing of Virtual Frisch-Grid CdZnTe Detector Arrays Using the H3D ASIC
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Use of high-granularity position sensing to correct response non-uniformities of CdZnTe detectors
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List-mode likelihood: EM algorithm and image quality estimation demonstrated on 2-D PET
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New Virtual Frisch-Grid CdZnTe Detector Design With Sub-Millimeter Spatial Resolution
journal, October 2014


Works referencing / citing this record:

Efficient Charge Collection in Coplanar-Grid Radiation Detectors
journal, May 2018